WO2016021867A1

WO2016021867A1 - Container bag

Info

Publication number: WO2016021867A1
Application number: PCT/KR2015/007927
Authority: WO
Inventors: 최용덕
Original assignee: 최용덕
Priority date: 2014-08-06
Filing date: 2015-07-29
Publication date: 2016-02-11
Also published as: AU2015299917B2; KR101459113B1; AU2015299917A1

Abstract

The present invention provides a container bag comprising: a body part; and a plurality of lifting belts, wherein the body part comprises: a plurality of side wall portions which are provided so as to form an inner space where powders are stored, both side ends of each thereof being mutually connected, and the width of the lower section being formed wider than the width of the upper section so that bending portions are formed on the both side ends; a cover portion which has an inserting tube portion formed in the middle thereof and is connected to the upper ends of the side wall portions; and a floor portion connected to the lower ends of the side wall portions, and wherein the plurality of lifting belts comprise: ring portions which project over the cover portion; binding portions which are respectively connected to both ends of the ring portions and respectively combined along the middle portion of one side wall portion and the middle portion of another side wall portion adjacent thereto; and a lower support portion which is connected to the lower end of each of the binding portions and combined with the floor portion, whereby a container bag of the same size can contain a maximum load amount by maintaining a stable, upright shape when filled with contents, and stability is enhanced when loads are laminated in multiple stages.

Description

Container bag

The present invention relates to a container bag, and more particularly, to a container bag of the same size to maintain a stable upright form when the contents are filled, but to a container bag having improved stability during multi-stage stacking for loading.

In general, a container bag is also called a FIBC (flexible intermediate bulk container), a big bag (bulk), a bulk bag (bulk bag), for storing and transporting powders, such as grains and synthetic materials It is an industrial bag. The container bag is formed to facilitate the storage and withdrawal of the powder stream using a flexible synthetic resin material.

At this time, the container bag containing the contents of the chemical (chemical), mineral (mineral), grain (grain), synthetic resin powder material, cement, etc. about 500Kg to 2000Kg, and the like by crane or hoist forklift They are transported and stored in warehouses or loaded into trucks. In recent years, as international trade has increased, demand for container bags with improved storage efficiency while increasing storage efficiency has been increasing for transportation and warehouse loading in order to reduce transportation and storage costs.

1 and 2 are a perspective view showing a conventional container bag (100,200).

As shown in FIGS. 1 and 2, the

conventional container bags

100 and 200 may include

sidewall parts

110 and 210 that form an inner space in which contents are stored, and

cover parts

120 and 220 that selectively open and close upper portions of the

sidewall parts

110 and 210. And

bottom portions

130 and 230 selectively opening and closing the lower portions of the

sidewall portions

110 and 210. In addition, the upper circumference of the side wall portion (110, 210) is provided with a ring portion (140, 240) formed of a conveying rope or belt (belt).

Here, the

side wall portions

110 and 210 are sealed to form a cylinder or a square column when the contents are stored. At this time, the container bag 100 in which the side wall portion 110 is sealed in the cylindrical shape can accommodate a large amount of contents, but when the container bag 100 is stored in a container box or a warehouse, the container bags 100 are not in close contact with each other. There is a problem in that a large volume is formed due to the increase in the porosity of the free space.

In addition, in the case of the container bag 200 in which the side wall portion 210 is sealed in the form of a square pillar, the clearance between the container bags may be reduced when it is loaded in a truck or stored in a warehouse, thereby reducing the porosity. However, when more than a predetermined amount of contents are stored, a load phenomenon occurs in which the central portion 211 of the side wall portion 210 protrudes outwards due to the load of the contents itself, thus occupying more loading space.

In addition, when the container bag 200 is stacked and stacked in multiple stages, the load of the container bag 200 is distributed to the protruding portions 211 of the side wall portion 210, thereby failing to maintain a shape, thereby stably stacking the container bag 200. There was a problem that could not be. For this reason, when falling to the container bag 200, there is a serious problem that the operator is greatly injured, or the contents stored therein are spilled or damaged.

In addition, in order to solve the problem of not being able to efficiently use a limited space due to the multi-layer stacking due to the filling phenomenon, a method of forming a reinforcing part in the vertical direction or the horizontal direction of the side wall part 210 has been proposed. However, the loading load is concentrated in the adjacent portion of the reinforcement portion, the tearing occurs, not only the durability of the product is significantly reduced, but also the problem that the manufacturing cost is increased by forming the reinforcement portion.

On the other hand, a method of sewing the partition connecting the inner surface of the side wall portion 210 to reduce the hungry phenomenon of the side wall portion has also been proposed. However, foreign matter generated during the fabrication of the partition was not mixed with the contents or the inner shell to protect the contents due to the partition could not be used, and when the multi-stage loading, the connection part of the partition was easily damaged, thereby reducing the stacking stability.

In order to solve the above problems, while maintaining a stable upright form when filling the contents to accommodate the maximum loading amount in the container bag of the same standard, to provide a container bag with improved stability in the multi-stage stacking for loading .

In order to solve the above problems, the present invention is provided with a plurality of to form an inner space in which the powder is stored, each side end is connected to each other, but the lower width is formed wider than the upper width side wall is formed in the bent portion at both ends A body portion including a portion, an insertion tube portion formed at a central portion thereof, a cover portion connected to an upper end portion of the side wall portion, and a bottom portion connected to a lower portion of the side wall portion; And a ring portion protruding upward of the cover portion, a coupling portion connected to both ends of the ring portion, respectively coupled along a central portion of one side wall portion and another adjacent side wall portion, and connected to a lower end of each coupling portion, Provided is a container bag including a plurality of lifting belts including a lower support coupled to the portion.

Through the above solution, the present invention provides the following effects.

First, each edge center portion of the bottom portion is formed to be bent inwardly and connected to the side wall portion, and the lower support portion of the lifting belt pulls and supports the adjacent edge center portion of the bottom portion in the diagonal direction. Accordingly, the curved surface portion which is concave inwardly along the center of the side wall portion is formed so that four virtual pillars are formed in the shape of a crobar from the center of the body portion to the edge. Through this, the load of the bag is distributed to the bottom surface of the four columns to stably accommodate the flow of the upper part, so that the upright shape of the body part can be maintained firmly.

Secondly, the lifting belt transmits lifting force simultaneously to the upper and lower portions of the body portion while supporting the load of the contents contained in the body portion through the coupling portion coupled to the side wall portion and the lower support portion coupled to the bottom portion. Therefore, safety of the body is improved by minimizing the shaking of the body part, and the durability of the product may be improved because the lifting belt and the connection part between the body parts are prevented from being torn due to the shaking of the body part.

Third, the lifting belt passes between the cover part and the side wall part, between the side wall part and the bottom part, and is overlapped in one sewing, so that more robust and efficient parts can be combined and the productivity of the product can be improved.

Fourth, the body portion can be maintained in the shape of a square pillar without a separate partition member through the curved edge center portion of the lifting belt and the bottom portion. Through this, an inner liner that can protect the contents contained inside the body part from foreign matter or moisture can be used and used, and thus the storage efficiency of the product can be improved.

1 and 2 are a perspective view showing a conventional container bag.

3 is a perspective view showing a container bag according to an embodiment of the present invention.

Figure 4 is an exemplary view showing a bottom portion in a state filled with the contents in a container bag according to an embodiment of the present invention.

5 is an exploded view showing a container bag according to an embodiment of the present invention.

Figure 6 is a perspective view showing a cover portion of the container bag according to an embodiment of the present invention.

Figure 7 is a perspective view showing the bottom of the container bag according to an embodiment of the present invention.

8a to 8c is a cross-sectional view showing the contents are filled in the container bag according to an embodiment of the present invention.

Best Modes for Carrying Out the Invention The following is a detailed description.

Hereinafter, with reference to the accompanying drawings will be described in detail a breathable tobacco filter and a manufacturing method according to a first embodiment of the present invention.

Figure 3 is a perspective view showing a container bag according to an embodiment of the present invention, Figure 4 is an exemplary view showing a bottom portion in a state filled in the container bag according to an embodiment of the present invention, Figure 5 is a present invention 6 is an exploded view showing a container bag according to an embodiment of the present invention, FIG. 6 is a perspective view showing a cover portion of a container bag according to an embodiment of the present invention, and FIG. 7 is a perspective view showing a bottom portion of a container bag according to an embodiment of the present invention. 8A through 8C are cross-sectional views illustrating contents being filled in a container bag according to an embodiment of the present invention.

As shown in Figure 3 to 8c, the container bag 300 according to an embodiment of the present invention comprises a body portion 10 and the lifting belt (20).

Here, the container bag 300 is preferably formed using a flexible material that is easy to deform in shape so that the volume is minimized and stored in a state where the contents such as powders are not stored. In this case, the container bag 300 may be formed of a natural fiber material, polyvinyl chloride (PVC), and synthetic resin material (polypropylene, polyethylene) to maintain the external shape of the container bag 300 while maintaining strength. If necessary, an inner liner (not shown) made of a synthetic resin with waterproof material may be provided inside the container bag.

Meanwhile, referring to FIGS. 3 to 5, the body part 10 includes

sidewall parts

11 and 12, a cover part 13, and a bottom part 14. Here, the

side wall portions

11 and 12 are provided in plural so as to form an inner space in which powder flow is accommodated, and both side ends 11b are connected to each other.

For example, when the body portion 10 is provided in a quadrangular column shape, the

side wall portions

11 and 12 may be provided in four pieces, and the other side end of one side wall part may be one end of the other side wall part. It is connected in sequence to form a square column with the upper and lower surfaces open. Of course, the side wall portion may be provided as a single film, and the inner side can be folded at regular intervals to form a polygonal pillar shape and connect one end and the other end to form an inner space.

In addition, each of the

side wall portions

11 and 12 has a lower width c that is wider than an upper width b so that bent portions 11d are formed at both end portions 11b. Accordingly, the lower cross-sectional area of the inner space of the body portion 10 may be formed wider than the upper cross-sectional area. That is, when both side end portions 11b of the side wall portion 11 provided with four pieces are coupled to each other, the upper and lower surfaces are opened to form a rectangular quadrangular shape with a narrow upper portion and a lower portion.

At this time, the bent part (11d) is formed on both side end portions (11b) of the side wall portion 11, it may be formed to be inclined so as to connect the narrowly formed upper side wall portion and the wide side lower side wall portion. Here, a portion where the upper end of the bent portion 11d is connected to the upper side wall portion side edge border and the portion where the lower end of the bent portion 11d is connected to the lower side side wall portion side edge border are illustrated as having a bent shape. Each connecting portion may be formed in a smooth curved shape.

As such, since the inner space of the body portion 10 has a wide lower portion and a narrow upper portion, the load of the contents can be stably supported by the wide lower side when the contents are filled, and thus can have improved uprightness. Accordingly, the container bag 300 may be mounted on a pallet having a constant horizontal and vertical size in an automated warehouse, and thus may be stacked in two or more layers by providing a stable support force in multi-stage stacking. Through this, more container bags 300 can be stored in a limited space, thereby providing an effect of reducing logistics costs.

Furthermore, the total load of the contents contained in the body portion 10 is loaded from both the narrow upper side to the wide lower side along both side end portions 11b of the

side wall portions

11 and 12 to be distributed and supported at each corner side of the bottom portion. So that the upright stability is improved. And, even if the height of the body portion 10 is formed higher than the conventional container bag filled with the contents can be maintained without standing up form.

Accordingly, the upright shape can be maintained even in a 1000kg container bag having a height of 33.3% or a 1500kg container bag having a height of 100% instead of the conventional 750kg container bag, thereby increasing storage efficiency. In addition, the load capacity that can be carried once can be increased and the number of transports can be reduced, thereby improving the loading and transport efficiency significantly.

In addition, an inner liner (not shown) may be further provided inside the body part 10 to separate and protect the received contents from the inner surface of the side wall part 11. That is, the inner belt can be put and used inside the body portion 10 because the lifting belt and the bottom portion can maintain the body portion in the shape of a square pillar without a separate partition member through a curved edge portion.

As a result, when the contents are in the form of fine particles such as powder, it is possible not only to prevent loss of the contents between the

sidewall portions

11 and 12, but also to contaminate the contents by introducing foreign substances between the gaps of the joint portions. It can be prevented and the storage efficiency can be further improved.

In addition, the cover portion 13 has an insertion tube portion 13a into which the contents made of powder, etc., are inserted in the central portion thereof, and is connected to the upper end of the side wall portion 11. Here, the cover portion 13 is connected to the upper end of each side wall portion (11, 12) along the outer edge portion to form an upper surface of the inner space.

Of course, the cover portion 13 may be provided in a polygonal cross section or a circular cross-section according to the shape of the body portion 10, as shown in the case of the body portion 10 is a square pillar shape as a square cross section Is preferred. In this case, the insertion tube portion 13a may be formed of a circular column joined to an edge of a circular opening formed in the center of the cover portion 13.

Of course, the shape of the insertion tube portion 13a may be formed in various forms without being limited to a circular column, and may be separately formed and bonded to the opening edge of the cover portion 13 or at the opening edge of the cover portion 13. It may be integrally molded to extend.

In detail, the insertion pipe part 13a is a passage through which contents flow into the inner space of the body part 10. That is, the insertion pipe portion 13a may be brought into close contact with a lower end of a supply means (not shown) such as a funnel for injecting the contents, and the contents may be inserted into the internal space. At this time, a fixing strap (not shown) may be provided on one side of the outer surface of the insertion tube portion 13a, and after the filling of the contents, the fixing strap may be tied to seal the inner space.

4 to 5, the bottom portion 14 is connected to lower ends of the

side wall portions

11 and 12. That is, the bottom portion 14 is connected to the lower end of each side wall portion (11, 12) along the outer edge portion to form a lower surface of the inner space. Here, the bottom portion 14 may be provided in a polygonal cross section or a circular cross section according to the shape of the body portion 10, as shown in the case where the body portion 10 has a square pillar shape as a square cross section Is preferred.

In detail, the contents injected into the internal space through the insertion tube portion 13a may be discharged through the insertion tube portion 13a in a state of inverting the body portion 10 and formed at the center of the bottom portion 14. The opening may be connected to the discharge pipe to discharge the contents. That is, when the contents are injected into the body part 10, the discharge pipe part is sealed, and when the injected contents are discharged, the body part 10 is opened by opening the discharge pipe part in a state in which the body part 10 is lifted upward. The contents of can be discharged to the outside.

Meanwhile, referring to FIGS. 3 to 4, the lifting belt 20 includes a ring portion 21, a

coupling portion

22 and 24, and a lower support portion 23. Here, the ring portion 21, the

coupling portion

22, 24, the lower support 23 is to separate the respective parts of the lifting belt 20 according to the function of the ring portion 21, the coupling The

parts

22 and 24 and the lower support part 23 are preferably integrally formed. That is, the lifting belt 20 may be provided with a strip of synthetic resin material, it is preferably provided with a polypropylene (PP, polypropylene). At this time, the lifting belt 20 may be provided in a ring shape by folding the center side to form a ring on one side, by connecting both ends.

Here, the ring portion 21 protrudes upward of the cover portion 13. That is, the ring portion 21 may mean a portion protruding from the upper edge of the

side wall portions

11 and 12 in the lifting belt 20 to the upper side of the cover portion 13. For example, in the state in which the central side of the lifting belt 20 is folded to form a ring, the ring side may be disposed above the cover part 13 to form the ring portion 21.

In addition, the lifting belt 20 may be fixed by coupling the lower portion of the ring side to the

side wall portions

11 and 12, and both ends of the lifting belt 20 may be disposed toward the bottom portion 14. The bottom support portion 23 may be coupled to the bottom portion 14 and coupled to the bottom portion 14.

In addition, one end of the ring portion 21 may be connected to the upper edge of one side wall portion 11 and the other end may be connected to the other edge of the side wall portion 12 adjacent to the side wall portion 11 to which the one end is connected. Here, one end and the other end of the ring portion 21 is preferably understood to mean a portion that is connected to the ring portion 21 and each of the coupling portion (22, 24). For example, when the body portion 10 is provided in a rectangular pillar shape, the

side wall portions

11 and 12 are provided in four pieces to form the front, right side, back side, and left side of the body portion 10. can do. At this time, the lifting belt 20 may be provided with four, four ring portion 21 may be formed.

That is, one end of one ring portion 21 and the other end of the other ring portion may be disposed at an upper end portion of one side wall portion 11, and one end and the other end of the two ring portions may be in close contact with each other at the center of the upper end portion of the side wall portion 11. Can be arranged. In this case, each of the ring portions 21 may be disposed in a diamond shape inside the cover portion 13.

Then, the lifting equipment may be inserted between the lower surface of each ring portion 21 and the upper surface of the cover portion 13, and the lifting portion may be hooked to the ring portion 21 to lift the body portion 10. . In addition, the

coupling portions

22 and 24 are connected to both ends of the ring portion 21, respectively, and are coupled along the central portion of one side wall portion 11 and the other adjacent side wall portion 12, respectively. Here, the

coupling parts

22 and 24 mean a part connected to the lower part of the ring part 21 in the lifting belt 20, and one coupling belt has two couplings at both ends of the ring part 21. The

parts

22 and 24 are connected.

At this time, the first coupling portion 22 connected to one end of the ring portion 21 is disposed in the vertical direction along the central portion of one side wall portion 11 is coupled. In addition, the second coupling part 24 connected to the other end of the ring part 21 is vertically along the center part of the side wall part 11 adjacent to the side wall part 11 to which the first coupling part 22 is coupled. Placed and combined.

That is, the first coupling portion 22 of the one lifting belt 20 and the second coupling portion of the other lifting belt may be coupled to the central portion of the side wall 11. At this time, it is preferable that the first coupling part 22 of the one lifting belt and the second coupling part of the other lifting belt are arranged to be in close contact with each other based on the center line 11e of the side wall part 11.

Of course, each coupling part of the two lifting belts disposed along the center line 11e of the side wall part 11 may overlap each other and be coupled to the side wall part 11. In addition, it is preferable to align the respective lifting belt outer lines along the center line 11e so as to maximize the coupling area between the sidewall part 11 and the lifting belt to be coupled to the sidewall part 11. At this time, it is preferable that the first coupling part 22 of the one lifting belt and the second coupling part of the other lifting belt disposed on each side wall part 11 are arranged to be symmetrical with each other.

Here, the coupling distance between each coupling portion 22 and each side wall portion 11 is provided shorter than the height of the side wall portion, the coupling distance is preferably provided with 85% ~ 99% of the height of the side wall portion. In this case, the coupling distance means a portion in which each coupling portion 22 and each side wall portion 11 are substantially sewn. It is preferable that the upper end of the side wall portion 11 and the coupling portion, the lower end of the side wall portion 11 and the coupling portion are present in a non-sewn state.

When the coupling distance is less than 85%, there is a fear that the coupling portion may not withstand the load of the contents contained in the body portion and be separated from the side wall portion. On the other hand, when the coupling distance is greater than 99%, the through parts of the sewing thread overlap each other when the coupling part overlaps between the side wall part and the cover part or the coupling part overlaps between the side wall part and the bottom part. There is a fear that the bonding strength at the bottom of the bottom is lowered.

In addition, the lower support 23 is connected to the lower end of each

coupling portion

22 and 24, but is coupled to the bottom portion 14. Here, the lower support 23 is preferably understood to mean a portion connected to the lower portion of each

coupling portion

22, 24 in the lifting belt (20).

For example, when the folded portion of the lifting belt 20 forms the ring portion 21, both ends of the lifting belt 20 are connected to each other and are disposed toward the bottom portion 14 so as to support the lower support 23. ) Can be formed. Of course, the folded portion of the lifting belt 20 may be disposed on the bottom 14 to form the lower support 23. At this time, both ends of the lifting belt 20 may be connected to each other in a protruding state of the cover portion 13 to form the ring portion 21.

And, the lower support portion of each of the four lifting belts is preferably arranged to connect two adjacent corners of the four corners of the bottom portion (14). That is, each lower support portion 23 may be arranged to connect the center of one side of the bottom portion 14 and the other edge of the corner adjacent to the one side. In this case, two lower support end portions may be disposed in close contact with each other at the center of each corner, and the end of the lower support 23 refers to a portion where the lower support 23 and the

respective coupling parts

22 and 24 are connected. It is preferable to understand that it means.

Here, the lower support parts are preferably arranged and fixed to be symmetrical with the lower support parts of the other lifting belts based on the respective center portions of the edges of the bottom part. That is, each of the lower support parts is preferably arranged to be symmetrical with respect to an imaginary line connecting the center of the facing edge from the center of one edge of the bottom part.

Of course, the bottom portion is not limited to the shape of a square, it is also possible to be provided in the form of a rectangle. At this time, each lower support portion is mirror symmetrical with respect to the imaginary line connecting the center of the pair of long edges facing each other at the bottom portion, the virtual connecting the center of the pair of short edges facing each other at the bottom portion Each lower support is symmetrical about the line. As such, the lifting belt 20 is coupled to the side wall portions (11, 12) and the bottom portion 14 when the lifting portion of the body portion 10 through the ring portion 21 Through the lower support 23 coupled to the body can distribute the load of the contents contained in the body portion.

In addition, since the lifting force can be simultaneously transmitted to the upper and lower portions of the body portion 10, the shaking of the body portion 10 can be minimized. Accordingly, safety accidents that may occur during swinging of the body portion 10 or damage to the contents may be prevented, thereby improving safety during transportation. In addition, it is possible to prevent the tearing by dispersing the load concentrated on the connecting portion of the lifting belt 20 and the body portion 10. Accordingly, the allowable tensile load of the tension belt 20 may be increased, thereby providing a foundation technology for manufacturing a large-capacity container bag.

On the other hand, the

coupling portion

22, 24 is disposed to be in close contact with the inner surface of the side wall portion 11, the lower support portion 23 is preferably arranged to surround the back surface of the bottom portion (14).

That is, the

coupling portions

22 and 24 are coupled to the inner space side of the body portion 10 on which the contents are loaded, and the lower support portion 23 has a bottom on which the body portion 10 directly contacts the pallet or the ground. It is coupled to the back of the portion 14.

Accordingly, when the container bags 300 are arranged side by side in parallel in the lateral direction to prevent the lifting belts 20 from catching each other when the individual container bags 300 are in contact with each other when the body parts 10 are in contact with each other. have. Accordingly, durability of the product may be improved by preventing the coupling force between the lifting belt 20 and the body portion 10 from being lowered due to contact and friction between the lifting belts 20.

In addition, when the body portion 10 is lifted through the ring portion 21, the entire area of the lower support portion 23 may be used to stably lift the bottom portion 14 while supporting the bottom portion 14.

In addition, the connection portions of the

coupling portions

22 and 24 and the ring portion 21 are overlapped and coupled between the upper end portion of the side wall portion 11 and the cover portion 13. In addition, the connection portions of the

coupling parts

22 and 24 and the lower support part 23 are overlapped and coupled between the lower end part of the side wall part 11 and the bottom part 14.

In detail, the edges of the cover part 13, the

side wall parts

11 and 12, and the bottom part 14 may be combined by sewing or adhesives to form the body part 10. At this time, the lifting belt 20 passes through the coupling portion between the cover portion 13 and the

side wall portions

11 and 12 and the coupling portion between the

side wall portions

11 and 12 and the bottom portion 14. Can be arranged.

In particular, in most cases, the coupling between each member of the body portion 10 and the coupling between the body portion 10 and the lifting belt 20 may be made by sewing. Here, when the lifting belt 20 is sewn between the members of the body portion 10, the coupling portions between the members are superimposed and coupled through a single sewing to be more firmly and efficiently coupled.

Meanwhile, each of the

edges

14a and 14b of the bottom portion 14 is formed to be bent inwardly, and a lower end of the side wall portion 11 connected to each edge center portion 14a of the bottom portion 14. The central portion 11f is preferably formed to be bent upwards. At this time, when the bottom portion 14 and the side wall portion 11 are coupled, the curved portion 42 recessed inwardly along the upper side thereof from the bottom of each side center of the body portion 10 may be formed. have.

Accordingly, when the container bag 300 is filled with contents, four pillars g are formed at four corners from the center of the body portion 10. At this time, the cross section of the body portion 10 has a four-leaf clover shape, four virtual pillars (g) may be formed in four directions in the center of the cross section.

In addition, the lower support part 23 may be disposed to support the one edge center portion 14b of the bottom portion 14 and the other edge edge portion adjacent to the one edge 14a in a diagonal direction. Here, the lifting belt 20 is coupled along the inner side of the side wall portion 11 of the body portion 10 and coupled to surround the bottom surface of the bottom portion 14. Accordingly, the lower support part 23 may pull and support the adjacent edge center part 14b of the bottom part 14 inward.

That is, the connecting portion of the lower support portion 23 and the

coupling portion

22, 24 presses the curved surface portion 42 formed on each surface of the body portion 10 toward each pillar (g) direction to the curved surface portion ( The recessed shape of 42 can be maintained more accurately.

Accordingly, a full stomach phenomenon that the center portion of the body portion 10 is protruded to the outside may be prevented. In addition, when the container bag 300 is generally maintained in a rectangular pillar shape, when the container bag 300 is loaded and stored in a transport vehicle or a warehouse, the porosity between the container bags 300 may be reduced to provide more storage space in the same volume. .

In addition, since the load of the container bag 300 is distributed to the bottom surface of the virtual pillar formed of four, the upright shape can be maintained firmly by receiving the flow of the upper part stably. Therefore, even if the height of the container bag 300 is formed to be additionally long, since the uprightness of the bag is maintained, a larger capacity container bag can be manufactured.

In detail, when the contents are filled in the internal space of the body portion 10, the contents m are accumulated from the center of the bottom portion 14, and the contents stacked above a predetermined height flow toward the side wall portion 11. At this time, the packaging material formed into the deformable space tends to accumulate to the maximum volume while maintaining a constant surface area when the contents are filled. Accordingly, the centering of the side wall portion may cause a full stomach phenomenon that is to be generally circular (circular shape) in order to secure the maximum area without changing the total length.

Here, the curved portion 42 is formed in the center of the side wall portion 11 inwardly concave, so that the filling phenomenon may be prevented by a tensile force such as h. As such, each edge center portion 14b of the bottom portion 14 may be formed to be bent inward, and the edge center portion 14b of the bottom portion 14 may be pulled inward by the lower support portion 23.

Accordingly, the body portion 10 is connected by the lower support portion 23 and the

coupling portions

22 and 24 together with the tensile force by the curved portion 42 and the

coupling portions

22 and 24. The central portion of the side wall portion of the c) is pressed inward to prevent a full stomach phenomenon. Through this, the storage efficiency may be improved by minimizing the porosity between the body portions 10 arranged in parallel in the transverse direction. Here, the lower support portion 23 is coupled to cover the rear surface of the protruding portion of the bottom portion 14 corresponding to the lower side of the pillar (g) formed at each of the four corners at the center of the body portion 10. This is preferred. Accordingly, the durability of the product can be improved by preventing the protruding portion of the bottom portion 14 from being concentrated on contact with the ground, pallet, or other container bag.

Meanwhile, each of the edges of the cover part 13 and the bottom part 14 has a length longer than an end width of the side wall part 11 coupled thereto, and the cover part 13 and the bottom part ( Each corner portion 13c of the 14 is preferably connected to the side wall portion 11 in a state of being folded in a cone shape and overlapping.

In detail, referring to FIGS. 5 to 6, each edge of the cover portion 13 is formed to be longer than the upper width of the side wall portion 11 so that the marginal portion 13b of the edge is folded to one side, and the cover portion Edges of the 13 may be connected to the side wall portion 11 in a state of being folded in a cone shape 13c. At this time, the cover portion 13 is preferably formed in a size that can cover the upper surface of the inner space in the folded state (13b).

And, referring to Figure 8a, the cover portion 13 and the side wall portion 11 is mainly coupled by sewing, the inner surface of the side wall portion 11 and the lower surface of the cover portion 13 for efficient sewing. The outer part of the cover part 13 is sewn in a state of being bent upward so as to contact each other.

At this time, referring to Figure 8b, due to the sewing portion 41 between the side wall portion 11 and the cover portion 13 is formed a portion that can not be filled in the upper portion of the interior space. As such, as the margin part 13b is formed at the edge of the cover part 13, the cover part 13 may be extended upward with the filling of the contents.

In addition, referring to FIG. 8C, a portion of the cover part 13 overlapped with the cone shape 13c is slightly unfolded at a corner of the cover part 13, and a central portion of the cover part 13 may protrude higher than an edge in a pyramid shape. In detail, when the content is powder, air is included between the content particles filled in the internal space, and in order for the air to be discharged to the outside, a time of about 7 to 10 hours is required depending on the weight or volume of the content particles. Do.

That is, when the contents, such as powder, are flatly filled inside the body portion, the air between the contents of the container bag loaded on the lower side is pitted out by the load of the container bag stacked on the upper side during the multi-stage stacking. As a result, the container bags stacked on the upper side of the lower container are not properly supported and fall easily.

At this time, the overlapped portion of the cover portion 13 in the form of a cone-shaped (13c) is unfolded and as the central portion of the cover portion 13 protrudes higher than the border may be injected into the pyramid form with ease. Afterwards, the portion that is loosely injected in the form of a pyramid can fill the reduced volume due to the internal air discharge.

Accordingly, even when the air is discharged by the pressure of the container bag stacked on the upper side by stacking the container bags without the process of discharging the air between the contents, the upper portion of the body portion does not turn off to the lower side. Through this, it is possible to more stably stack the container bag on the upper side of the lower container that is kept flat.

5 to 7, each edge of the bottom portion 14 is formed to be longer than the bottom width of the side wall portion 11 so that the marginal portion 14d of the edge is folded to one side. Corners of the portion 14 may be connected to the side wall portion 11 in a state of being folded in a cone shape 14c. At this time, the bottom portion 14 is preferably formed to have a size that can cover the lower surface of the inner space in the folded state (14d).

The bottom portion 14 and the side wall portion 11 are mainly coupled by sewing, and the bottom surface of the side portion 11 and the top surface of the bottom portion 14 are in contact with each other for efficient sewing. The outer portion of the portion 14 is sewn in a state bent downward.

At this time, due to the sewing portion between the side wall portion 11 and the bottom portion 14 there is a portion that the contents can not be filled in the lower edge side of the inner space. Through this, when the contents are filled, portions overlapping with the cone shape 14c at the corners of the bottom portion 14 may be slightly extended and protrude convexly.

Accordingly, the rear portion of the bottom portion 14 corresponding to the bottom portions of the four pillars protrudes downward, so that the loads applied to the bottom portion 14 are distributed toward the edges, and the distributed loads It may be concentrated in a convex portion towards the floor. Therefore, the lower side of the container bag 300 can be more stably supported to maintain the upright form without falling down to the left and right sides.

On the other hand, the ring portion 21 of the lifting belt 20 is provided with a ring-shaped auxiliary lifting belt 30 to restrain the ring portion of another lifting belt disposed adjacent to, the auxiliary lifting belt 30 is It is preferable to be disposed opposite to each other on one side and the other side of the body portion 10. Here, the auxiliary lifting belt 30 restrains two lifting belts disposed on one side of the body portion 10 and two lifting belts disposed on the other side of the body portion 10, and two auxiliary lifting belts. (30) When lifting, all four lifting belts can be restrained and lifted.

That is, when lifting the two auxiliary lifting belts 30 disposed on both sides of the body portion 10, the front and rear of the body portion 10 in which the auxiliary lifting belt 30 is not disposed is the auxiliary lifting belt. It can be pulled and lifted by the lifting belt constrained by (30).

Due to this, the tensile force applied to the body portion 10 at the time of lifting is distributed to the entire outer surface of the body portion 10 without being concentrated on both sides of the body portion 10, and can be lifted if tightened uniformly so that the load Dispersion can improve the durability of the product.

In addition, when it is difficult to lift four lifting belts at the same time, even if using only two auxiliary lifting belts 30 disposed on both sides using lifting equipment such as a forklift or hoist, the lifting belt 20 is the body portion (10). The container bag can be lifted stably without being separated from the body or damage such as tearing of the body portion 10. Therefore, it can be used in a variety of lifting equipment and situations without a special device can improve the compatibility and ease of use of the product.

In addition, the auxiliary lifting belt 30 is preferably provided in a ring shape surrounding each of the ring portions 21 so as to flow in the ring portion 21 of each lifting belt 20. Accordingly, the pulling force applied from the auxiliary lifting belt 30 to the lifting belt 20 during the lifting through the auxiliary lifting belt 30 may be uniformly distributed to each of the

coupling parts

22 and 24.

As described above, the present invention is not limited to the above-described embodiments, but may be modified and implemented by those skilled in the art without departing from the scope of the claims of the present invention. Such modifications are within the scope of the present invention.

The present invention can be used in the industry in the field of container bags for the transport of powders by providing a container bag that maintains a stable upright form that allows multi-stage stacking when filling the contents and accommodates the maximum load as the same standard.

Claims

It is provided with a plurality so as to form an internal space for storing the powder flow, each side end is connected to each other, but the lower width is formed wider than the upper width sidewall portion is formed at both ends and the insertion tube is formed in the center A body part including a cover part connected to an upper end of the side wall part, and a bottom part connected to a lower part of the side wall part; And

A ring portion protruding upward of the cover portion, a coupling portion connected to both ends of the ring portion, respectively coupled along a central portion of one side wall portion and a central portion of another adjacent side wall portion, and connected to a lower end of each coupling portion, wherein the bottom portion Container bag comprising a plurality of lifting belt including a lower support coupled to.
The method of claim 1,

Each edge center portion of the bottom portion is formed to be bent inward, and the bottom center portion of the side wall portion connected to each edge center portion of the bottom portion is formed to be bent upwards,

The lower support portion is disposed to support the bottom edge portion of the bottom portion and the other edge portion adjacent to the one side edge in a diagonal direction, and are symmetrical with the lower support portion of the other lifting belt based on the center of each edge of the bottom portion. Container bag, characterized in that fixed.
The method of claim 1,

The coupling portion is arranged to be symmetrical with the coupling portion of the other lifting belt with respect to the center of each side wall portion is coupled to the inner surface of the side wall portion, the lower support portion is arranged to surround the back of the bottom portion,

The coupling part and the connection part of the ring part are overlapped and coupled between the upper end part and the cover part of the side wall part, and the coupling part and the connection part of the lower support part are overlapped and coupled between the bottom part and the bottom part of the side wall part. Container bag.
The method of claim 1,

Each rim of the cover portion and the bottom portion has an extra length to be longer than an end width of the side wall portion joined thereto,

Each corner portion of the cover portion and the bottom portion is folded in a cone shape folded and connected to the side wall portion.
The method of claim 1,

The coupling distance between each coupling portion and each side wall portion is provided shorter than the height of the side wall portion, the coupling distance is characterized in that the 85% to 99% of the height of the side wall portion.